In 1933 the [[National Socialist German Workers Party|Nazi party]], on the orders of [[Joseph Goebbels]]<ref>''Il Potere e la Gloria'', op cit.</ref> banned the novel and ordered copies to be burned. Since 1931 he had been living in [[Switzerland]], and in 1939 he emigrated to the United States, becoming a naturalized citizen there in 1947. In 1948 he returned to Switzerland, where he died in 1970. | In 1933 the [[National Socialist German Workers Party|Nazi party]], on the orders of [[Joseph Goebbels]]<ref>''Il Potere e la Gloria'', op cit.</ref> banned the novel and ordered copies to be burned. Since 1931 he had been living in [[Switzerland]], and in 1939 he emigrated to the United States, becoming a naturalized citizen there in 1947. In 1948 he returned to Switzerland, where he died in 1970. |